GrimmSpeed

Grimmspeed Lightweight Crank Pulley WRX 2015-2021 / BRZ 2013-2018 / FR-S 2013-2016

Name: Grimmspeed Lightweight Crank Pulley WRX 2015-2021 / BRZ 2013-2018 / FR-S 2013-2016
Brand: GrimmSpeed
SKU: grm095023
Price: 135.0 USD
Availability: InStock

$135.00 USD

Sale Sold out

{"id":8977539924257,"title":"Grimmspeed Lightweight Crank Pulley WRX 2015-2021 \/ BRZ 2013-2018 \/ FR-S 2013-2016","handle":"grimmspeed-lightweight-crank-pulley-wrx-2015-2021-brz-2013-2018-fr-s-2013-2016","description":"\u003cp data-mce-fragment=\"1\"\u003eYour factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a\/c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensive manufacturing and using the pulley's mass to smooth out 'noise' in the accessory system (NOT to be confused with functioning as a harmonic dampener, which it does not). The GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate the rotating assembly more quickly.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePart #: 095023\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eQuick Specs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e75% Reduction in Rotating Mass - weighs 1.1lb vs the 4.4lb OEM pulley\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMachined 6061 T6 Aluminum - high quality, precision construction\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHard Anodized Finish - ensures a durable finish and resists corrosion\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRemoval Tool Mounting - allows the use of the GrimmSpeed Crank Pulley Tool\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFactory Fitment - direct replacement for easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eDesign\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe design process for this pulley ensured that a perfect factory replacement fitment was maintained while performance was maximized. It's a common misconception that the mass of a crank pulley alone determines its effectiveness. The truth is that it's actually the moment of inertia that affects the pulley's ability to improve engine and throttle response. The moment of inertia, in non-engineering terms, is a function of not only the mass of an object, but how that mass is distributed about it's rotational axis. A lower moment of inertia means that less torque is required to spin the crank pulley and, in turn, the crankshaft\/engine. Our engineers took great care to keep the already minimal mass as close to the center of the pulley as possible without sacrificing its strength.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe result is a pulley that fits well, looks beautiful and works exactly as intended. From the first test drive, you'll notice smoother operation, faster response and a more enjoyable drive. Much of this is difficult to quantify, but you can see from the datalogs below that when compared to the OEM pulley, the GrimmSpeed Crank Pulley quantitatively improved throttle response.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFitments\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e2013+ Subaru BRZ\u003cbr data-mce-fragment=\"1\"\u003e2015+ Subaru WRX\u003cbr data-mce-fragment=\"1\"\u003e2012+ Subaru Impreza (FB\/FA Engines Only)\u003cbr data-mce-fragment=\"1\"\u003e2011+ Subaru Forester (FB\/FA Engines Only)\u003cbr data-mce-fragment=\"1\"\u003e2012+ Subaru Legacy (FB\/FA Engines Only)\u003cbr data-mce-fragment=\"1\"\u003e2012+ Subaru XV Crosstrek (FB\/FA Engines Only)\u003cbr data-mce-fragment=\"1\"\u003e2013+ Scion FR-S\u003c\/p\u003e","published_at":"2024-02-05T21:31:01-06:00","created_at":"2024-02-05T21:31:01-06:00","vendor":"GrimmSpeed","type":"Crank Pulley","tags":["2015-2021 Subaru WRX","Scion FR-S","Subaru BRZ","Toyota 86"],"price":13500,"price_min":13500,"price_max":13500,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":48048232005921,"title":"Black","option1":"Black","option2":null,"option3":null,"sku":"grm095023","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Grimmspeed Lightweight Crank Pulley WRX 2015-2021 \/ BRZ 2013-2018 \/ FR-S 2013-2016 - Black","public_title":"Black","options":["Black"],"price":13500,"weight":6804,"compare_at_price":null,"inventory_management":null,"barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":48048232038689,"title":"Blue","option1":"Blue","option2":null,"option3":null,"sku":"grm095024","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Grimmspeed Lightweight Crank Pulley WRX 2015-2021 \/ BRZ 2013-2018 \/ FR-S 2013-2016 - Blue","public_title":"Blue","options":["Blue"],"price":13500,"weight":6804,"compare_at_price":null,"inventory_management":null,"barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":48048232071457,"title":"Gunmetal","option1":"Gunmetal","option2":null,"option3":null,"sku":"grm095025","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Grimmspeed Lightweight Crank Pulley WRX 2015-2021 \/ BRZ 2013-2018 \/ FR-S 2013-2016 - Gunmetal","public_title":"Gunmetal","options":["Gunmetal"],"price":13500,"weight":6804,"compare_at_price":null,"inventory_management":null,"barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":48048232104225,"title":"Red","option1":"Red","option2":null,"option3":null,"sku":"grm095026","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Grimmspeed Lightweight Crank Pulley WRX 2015-2021 \/ BRZ 2013-2018 \/ FR-S 2013-2016 - Red","public_title":"Red","options":["Red"],"price":13500,"weight":6804,"compare_at_price":null,"inventory_management":null,"barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/outsiderperformanceusa.com\/cdn\/shop\/files\/Pully.png?v=1707190263"],"featured_image":"\/\/outsiderperformanceusa.com\/cdn\/shop\/files\/Pully.png?v=1707190263","options":["Color"],"media":[{"alt":null,"id":36670320836897,"position":1,"preview_image":{"aspect_ratio":1.494,"height":648,"width":968,"src":"\/\/outsiderperformanceusa.com\/cdn\/shop\/files\/Pully.png?v=1707190263"},"aspect_ratio":1.494,"height":648,"media_type":"image","src":"\/\/outsiderperformanceusa.com\/cdn\/shop\/files\/Pully.png?v=1707190263","width":968}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp data-mce-fragment=\"1\"\u003eYour factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a\/c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensive manufacturing and using the pulley's mass to smooth out 'noise' in the accessory system (NOT to be confused with functioning as a harmonic dampener, which it does not). The GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate the rotating assembly more quickly.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePart #: 095023\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eQuick Specs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e75% Reduction in Rotating Mass - weighs 1.1lb vs the 4.4lb OEM pulley\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMachined 6061 T6 Aluminum - high quality, precision construction\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHard Anodized Finish - ensures a durable finish and resists corrosion\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRemoval Tool Mounting - allows the use of the GrimmSpeed Crank Pulley Tool\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFactory Fitment - direct replacement for easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eDesign\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe design process for this pulley ensured that a perfect factory replacement fitment was maintained while performance was maximized. It's a common misconception that the mass of a crank pulley alone determines its effectiveness. The truth is that it's actually the moment of inertia that affects the pulley's ability to improve engine and throttle response. The moment of inertia, in non-engineering terms, is a function of not only the mass of an object, but how that mass is distributed about it's rotational axis. A lower moment of inertia means that less torque is required to spin the crank pulley and, in turn, the crankshaft\/engine. Our engineers took great care to keep the already minimal mass as close to the center of the pulley as possible without sacrificing its strength.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe result is a pulley that fits well, looks beautiful and works exactly as intended. From the first test drive, you'll notice smoother operation, faster response and a more enjoyable drive. Much of this is difficult to quantify, but you can see from the datalogs below that when compared to the OEM pulley, the GrimmSpeed Crank Pulley quantitatively improved throttle response.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFitments\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e2013+ Subaru BRZ\u003cbr data-mce-fragment=\"1\"\u003e2015+ Subaru WRX\u003cbr data-mce-fragment=\"1\"\u003e2012+ Subaru Impreza (FB\/FA Engines Only)\u003cbr data-mce-fragment=\"1\"\u003e2011+ Subaru Forester (FB\/FA Engines Only)\u003cbr data-mce-fragment=\"1\"\u003e2012+ Subaru Legacy (FB\/FA Engines Only)\u003cbr data-mce-fragment=\"1\"\u003e2012+ Subaru XV Crosstrek (FB\/FA Engines Only)\u003cbr data-mce-fragment=\"1\"\u003e2013+ Scion FR-S\u003c\/p\u003e"}

Product variants

Quantity

Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensive manufacturing and using the pulley's mass to smooth out 'noise' in the accessory system (NOT to be confused with functioning as a harmonic dampener, which it does not). The GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate the rotating assembly more quickly.

Part #: 095023

Quick Specs

75% Reduction in Rotating Mass - weighs 1.1lb vs the 4.4lb OEM pulley
Machined 6061 T6 Aluminum - high quality, precision construction
Hard Anodized Finish - ensures a durable finish and resists corrosion
Removal Tool Mounting - allows the use of the GrimmSpeed Crank Pulley Tool
Factory Fitment - direct replacement for easy installation

Design
The design process for this pulley ensured that a perfect factory replacement fitment was maintained while performance was maximized. It's a common misconception that the mass of a crank pulley alone determines its effectiveness. The truth is that it's actually the moment of inertia that affects the pulley's ability to improve engine and throttle response. The moment of inertia, in non-engineering terms, is a function of not only the mass of an object, but how that mass is distributed about it's rotational axis. A lower moment of inertia means that less torque is required to spin the crank pulley and, in turn, the crankshaft/engine. Our engineers took great care to keep the already minimal mass as close to the center of the pulley as possible without sacrificing its strength.

The result is a pulley that fits well, looks beautiful and works exactly as intended. From the first test drive, you'll notice smoother operation, faster response and a more enjoyable drive. Much of this is difficult to quantify, but you can see from the datalogs below that when compared to the OEM pulley, the GrimmSpeed Crank Pulley quantitatively improved throttle response.

Fitments
2013+ Subaru BRZ
2015+ Subaru WRX
2012+ Subaru Impreza (FB/FA Engines Only)
2011+ Subaru Forester (FB/FA Engines Only)
2012+ Subaru Legacy (FB/FA Engines Only)
2012+ Subaru XV Crosstrek (FB/FA Engines Only)
2013+ Scion FR-S

Off-Road Use Policy

By purchasing this product, you are acknowledging the use of this service is explicity for Competition/Off - Road Racing ONLY. It is the responsbility of the buyer to remain compliant with local, state & federal laws regarding EPA restrictions.

View full details